Before beginning he experiment the physical appearance of all the chemicals being used needs to be written down. To begin the experiment 3 test tubes must be acquired; a boiling tube, large test tube and a small test tube. The large test tube must be completely dried with a paper towel and labeled R for Reactants. After that is done a piece of weighing paper should be placed on a balance and tared. After make sure the balance is correctly tared, a spatula must be used to collect 2 grams of granular Zinc on the weighing paper. The zinc is then added to the boiling tube. Using a different spatula weigh out 2 grams of iodine crystals and also add the to the boiling tube. After having done that the boiling tube should be placed in a large beaker. Collect another boiling tube and a large test tube, which should be labeled P for product and C for colored solution respectively. Then place a one boiling chip in the boiling tube.
Before beginning this part of the experiment the steps should be read thoroughly. You begin by using a10mL graduated cylinder to measure out 5 mL of acidified water add it to the R boiling tube …show more content…
Observe the results and if the color of the mix is purple-light pink the test is positive. The test for iodide requires 5 drops of .1 M of AgNO3 to be added to your mix and if a yellow precipitate forms the test is positive. The triiodide test requires a visual inspection and if the colors are orange, brown or red the test is positive. The zinc ion test requires the solids to be dissolved in 2-3 mL of water (if a precipitate forms .17 M acetic acid should be added) and then to add 1 magnesium turning. If a fine black solid is deposited on the surface the test is positive. Finally the test for zinc metal requires 3 drops of 3 M HCl solution to be added to the test tube and if hydrogen gas is produced the test is
Before beginning this part of the experiment the steps should be read thoroughly. You begin by using a10mL graduated cylinder to measure out 5 mL of acidified water add it to the R boiling tube …show more content…
Observe the results and if the color of the mix is purple-light pink the test is positive. The test for iodide requires 5 drops of .1 M of AgNO3 to be added to your mix and if a yellow precipitate forms the test is positive. The triiodide test requires a visual inspection and if the colors are orange, brown or red the test is positive. The zinc ion test requires the solids to be dissolved in 2-3 mL of water (if a precipitate forms .17 M acetic acid should be added) and then to add 1 magnesium turning. If a fine black solid is deposited on the surface the test is positive. Finally the test for zinc metal requires 3 drops of 3 M HCl solution to be added to the test tube and if hydrogen gas is produced the test is